The Rhythm Performance Test-Revised (RPT-R) is a computer-based test instrument designed to assess performance of steady beat and rhythm patterns by children, ages 4-12. It is a standardized, norm-referenced instrument that measures rhythmic performance to an accuracy of milliseconds. RPTR assesses skills across two domains:1) matching the steady beat of recorded examples and 2) listening to and repeating rhythm patterns. It may be used: as a screening tool of rhythm performance skills; as a tool for identifying areas of rhythmic performance skill; as a research tool for assessing pre-post intervention changes in rhythm performance; and as a stand-alone assessment of a child's rhythm performance skill or as part of an assessment of a child's overall music skills.